This document discusses the importance of voluntariness in ethics. It defines two types of voluntary acts - direct and indirect. A direct voluntary act is intended for its own sake, while an indirect act is not intended for its own sake but follows as an unintended consequence. The document also outlines conditions for when an agent is responsible for unintended harmful consequences, and discusses principles around actions that have both good and bad effects. Specifically, it states that for such an action to be morally justified, the act itself must be good or neutral, the evil effect cannot be directly intended, there must be a sufficiently grave reason for doing the act, and the good effect cannot be outweighed by the evil effect.